Fly-fan.



J. W. WILLIAMS.

FLY FAN.

APPLIOATION FILED MAY 22, 1912. RENEWED MAR. 27, 1913.

1 (1974,9 1 7 Patented Oct. 7, 1913.

111/ Mlliam? l/vvwmoous UNTTED STATES PATENT OFFICE.

JOHN W. WILLIAMS, OF DIXON, TEXAS.

FLY-FAN.

Application filed May 22, 1912, Serial No. 699,024. Renewed March 2'7,1913.

To all whom it may concern Be it known that 1, JOHN W. WILLIAMS, acitizen of the United States, residing at Dixon, in the county of Hunt,State of Texas, have invented certain new and useful Improvements inFly-Fans; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in fly fans.

The principal object of the invention is to provide a fly fan which isadapted for use in connection with screen doors whereby during theopening and closing of the door the fan will be operated in a directionto direct a current of air outwardly and therelply act as a barrieragainst the ingress of Another object of the invention is to provide afan of the character described which is provided with means whereby thefan may be actuated by a person within a room previous to the opening ofa door.

A further object of the invention is to provide a fly fan for thepurpose described which is extremely simple in construction, it beingcomposed of a minimum number of parts, and is cheap to manufacture.

\Vith these and other objects in View, the invention consists in theconstruction. and novel combination of parts hereinafter fullydescribed, illustrated in the accompanying drawing and pointed out inthe claims hereto appended; it being understood that various changes inthe form, proportion, size and minor details of construction within thescope of the claims may be resorted to without departing from the spiritor sacrificing any of the advantages of the invention.

In the drawing: Figure 1 is a front elevation of a screen door showingthe application of my invention, the door being shown closed, Fig. 2 isan elevation of the inner side of the door showing the fan-actuatingcord connected with the door to permit of the fan being actuatedprevious to the opening of said door. Fig. 3 is a horizontal sectionalview taken on the line 3-3 of Fig. 1, and Fig. 4: is an enlarged detailsectional view through the fan and its supporting bracket.

Like reference numerals designate corre- Specification of LettersPatent.

Patented Dot. 2', 1913.

Serial No. 757,257.

sponding parts in all the figures of the drawing.

Referring to the drawing, A designates the casing of a screen door B,which door is connected to the casing by means of hinges 55. Secured tothe casing A adjacent the upper end of the outer edge of the door B, isa fan-supporting bracket which is desig nated as a whole by thereference letter C. This bracket includes a spindle 6 which has athreaded outer end 7 and a lateral flange 8 formed on its inner end.Extending from the flange 8 is a plurality of radial feet 9 which areattached to the casing A by screws or other suitable fastening means,the spindle 7 being disposed in a horizontal plane. Rotatably mountedupon the spindle 7 is a fan D. This fan includes a hub 10 from whichproject a plurality of blades 11. Extending inwardly from the hub is apulley 19 which abuts the stop or flange 8 above described. Disposedbetween the hub 10 around the spindle 6 is a series of anti-frictionbearing rollers 13. Disposed against the outer face of the hub 10 aroundthe spindle 6 is a washer 14, and associated with the threaded end 7 ofsaid spindle and bearing against the washer is a nut 15.

In order to actuate the fan D upon opening or closing of the door, ormanually previous to the opening of the door by a person inside theroom, an operating cord 16 is connected at one end to a staple 17 whichis centrally secured to the inner face of the door adjacent the inneredge thereof. This cord extends transversely across the inner face ofthe door to the outer edge thereof, and is then trained over a pulley18. The free end of the cord thence extends upwardly along the innerface of the outer edge of the door and thence passes out through atransverse opening 19 formed in the upper outer edge of said door. Thecord is then trained over a roller 20 secured to the door intermediatethe opening 19 and the fan. Secured to the door casing intermediate thedoor and the fan is a roller 21, the opening 19, rollers 20 and 21 andthe pulley 12 of the fan being all disposed in alinement. The outer endof the cord 16 is trained under the roller 21 and is wrapped one or moretimes around the pulley 12 of the fan, the free end of the cord normallyextending below the hub and carries a weight 22.

scend to its normal posit-ion and at the same time actuate the fan D, aswill be readily understood. Should a person on the inside desire toactuatethe fan D previous to the opening of the door, that portion ofthe cord 16 between the opening 19 and the staple 17 may be manuallyoperated, thereby creating a sutficient current of air to cause theflies to move away from the door. As soon as the cord is released by theoperator, the weight will drop bygravity to its normal position.

What is claimed is:

1. In a fly fan, the combination with a swinging door and its casing, ofa fan including a drum supported on the casing for rotation, a rollercarried by the outer face of the door and disposed adjacent the outeredge thereof, a roller carried by the casing and disposed intermediatethe first mentioned roller and the hub, an operating cord an opening, ofa fan including a drum supported on the casing for rotation; a rollercarried by the door and disposed intermediate the opening thereof andthe fan, a roller carried by the casing and disposed intermediate thedrum and the first mentioned roller, an operating cord wrapped aroundthe drum and having one end trained under the second mentioned rollerand over the first mentioned roller, the cord thence extending throughthe opening of the door and having its end connected to the inner faceof the door in spaced relation to the opening, and a weight carried bythe other end of the cord.

In testimony whereof, I aifix my signature, in presence of twowitnesses.

JOHN IV. WILLIAMS.

WVitnesses:

WV. H. CAMP, ALTHEA J ONES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

